Key Takeaways:
Inheriting a house doesn't trigger federal taxes — but what you do next determines your tax bill.
Inheriting a house does not trigger federal taxes. The step-up in basis resets property value to fair market value at the date of death, saving heirs thousands in capital gains when they sell.
A Real Estate Inheritance Report from Trust & Will finds that 56 percent of heirs sell an inherited home, making it the most common path forward. Another 17 percent turn inherited property into rental units.
Consider a home purchased decades ago for $150,000 that's worth $700,000 when inherited. If the heir sells for $750,000, the taxable gain is $50,000 — not $600,000 — because the IRS measures gain from the stepped-up basis. Kiplinger data shows 38 percent of Americans report real estate as part of their past or expected inheritance.
The federal picture is favorable, but state rules can complicate the math. Five states — Pennsylvania, New Jersey, Maryland, Kentucky, and Nebraska — levy inheritance taxes on certain heirs, while twelve states plus Washington, D.C. enforce estate taxes with exemptions far below the federal $15 million threshold. In Oregon and Rhode Island, estate taxes kick in on values as low as $1 million and $1.8 million respectively.
State Taxes Can Erase the Step-Up Advantage
In high-tax states like California, New York, or Minnesota, state capital gains rates can add 8 percent to 13 percent or more to the tax bill on post-inheritance appreciation. Some jurisdictions also trigger a property tax reassessment when title transfers, resetting the capped rate the previous owner enjoyed to current fair market value — a change that can significantly increase annual holding costs.
Nearly all state tax codes conform to the federal step-up in basis, resetting the property's starting value to fair market value at the date of death for state capital gains purposes. But the divergence comes in how states treat post-inheritance gain and whether they impose their own transfer taxes. A professional, independent appraisal as of the date of death establishes the baseline basis and protects heirs if the IRS questions the valuation later.
Rental Income and Medicare Premiums Add Another Layer
For the 17 percent of heirs who rent out an inherited home, rental income is typically taxable. Depreciation deductions can reduce annual tax liability but also lower the basis, potentially increasing capital gains when the property is eventually sold. Heirs should also factor in ongoing carrying costs — updated property taxes, insurance premiums, utilities, and deferred maintenance — before deciding to keep the property.
A one-time capital gain from selling an inherited home can also push a retiree's modified adjusted gross income above Medicare's income-related monthly adjustment amount (IRMAA) thresholds. Medicare's two-year income lookback means a large gain in one year raises Part B premiums two years later. For 2026, a single filer with MAGI above $205,000 pays $649.20 per month for Part B instead of the standard $202.90 — a nearly $5,400 annual increase, according to CMS data published November 14, 2025. The good news is that IRMAA resets annually if income drops back to normal levels.
The step-up in basis is the most powerful tax advantage available to heirs, but it only works if you document the property's fair market value at the date of death. Before deciding whether to sell, keep, or rent, model the full tax picture — federal capital gains, state taxes, property tax reassessment, and potential Medicare premium surcharges. Tax laws change frequently; verify current thresholds and rates against the latest official IRS and state announcements.
This article is for informational reference only and does not constitute professional tax, financial, or legal advice.
